IS-20925A

Instruction Sheet

CENTRAL HVAC MERV FILTERS INSTALLATION

Revision A

Info added: Optional metal frames available for kit 1 & 2

06-15-2021

APPLICATION
Part No.

Type

Vehicles

IS20925-1

MERV 8

H345 from A-1470 and up, X345 from B-5002 up to D-5458

IS20925-2

MERV 13

NOTE: 370479 & 370480 metal frames available for first installation

IS20925-3

MERV 8

IS20925-4

MERV 13

IS20925-5

MERV 8

IS20925-6

MERV 13

X345 from 7-8784 up to B-5001
H345 from R-012 to 9-1469

NOTE
Filter change is recommended every 3 months for MERV13 filters and every 6 months for
MERV8 filters

OPTIONAL MATERIAL
Order the following reusable metal frames for the first installation of Kit # IS20925-1 & # IS20925-2:
Part No.

Description

Qty

370479

OPTIONAL AIR FILTER FRAME 1" X 38" X 10-1/2" ASS (1)

1

370480

OPTIONAL AIR FILTER FRAME 1" X 38" X 10-1/2" ASS (2)

1

MATERIAL
Kit # IS20925-1 includes the following parts*:
Part No.
871466

Description

Qty

CENTRAL UNIT MERV8 FILTER 1" X 38" X 10 1/2

2

IS-20925

INSTRUCTION SHEET (EN)

1

FI-20925

INSTRUCTION SHEET (FR)

1

* 370479 & 370480 Optional metal frames available for first installation

Writer: mg

IS-20925
Page 2 / 7

Kit # IS20925-2 includes the following parts*:
Part No.
870142

Description

Qty

CENTRAL UNIT MERV13 FILTER 1" X 38" X 10 1/2

2

IS-20925

INSTRUCTION SHEET (EN)

1

FI-20925

INSTRUCTION SHEET (FR)

1

* 370479 & 370480 Optional metal frames available for first installation

Kit # IS20925-3 includes the following parts:
Part No.
870144

Description

Qty

CENTRAL UNIT MERV8 FILTER 1" X 38" X 21"

1

IS-20925

INSTRUCTION SHEET (EN)

1

FI-20925

INSTRUCTION SHEET (FR)

1

Kit # IS20925-4 includes the following parts:
Part No.
870145

Description

Qty

CENTRAL UNIT MERV13 FILTER 1" X 38" X 21"

1

IS-20925

INSTRUCTION SHEET (EN)

1

FI-20925

INSTRUCTION SHEET (FR)

1

Kit # IS20925-5 includes the following parts:
Part No.
870146

Description

Qty

CENTRAL UNIT MERV8 FILTER 1" X 23 3/8" X 43 1/2"

1

IS-20925

INSTRUCTION SHEET (EN)

1

FI-20925

INSTRUCTION SHEET (FR)

1

Kit # IS20925-6 includes the following parts:
Part No.
870147

Description

Qty

CENTRAL UNIT MERV13 FILTER 1" X 23 3/8" X 43 1/2"

1

IS-20925

INSTRUCTION SHEET (EN)

1

FI-20925

INSTRUCTION SHEET (FR)

1

NOTE
Material can be obtained through regular channels.

Writer: mg

IS-20925
Page 3 / 7

PROCEDURE

DANGER
Park vehicle safely, apply parking brake, stop engine. Prior to working on the vehicle, set the ignition
switch to the OFF position and trip the main circuit breakers equipped with a trip button. On Commuter
type vehicles, set the battery master switch (master cut-out) to the OFF position.
Lock out & Tag out (LOTO) must be performed during set-up, maintenance or repair activities. Refer to
your local procedure for detailed information regarding the control of hazardous energy.

CAUTION
All waste coming from the filters must be considered as potentially contaminated (dust and
particles). Handle accordingly & wear proper personal protection equipment (PPE).

1. Open the vehicle filter compartment door,
this door is located in the baggage
compartment next to the evaporator.
NOTE: Door size and shape may differ.

2. Remove the filter(s) from the evaporator
compartment.
NOTE: Vehicles may use one large or two small
filters (as shown on this late model H345). Refer to
tables above for correct application & part number

.

Writer: mg

IS-20925
Page 4 / 7

OPTIONAL AIR FILTER METAL FRAME INSTALLATION (FOR KITS IS20925-1 & IS20925-2)

1. Insert the filter in the frame making sure
that the element fits inside the locating
tabs.

2. Make sure that the airflow direction arrow
of the filter element matches with the
metal frame flow arrow.

3. Install both filters in the vehicle. Take note
that the upper filter is having a wider
handle with a protruding “hook” at the
lower corner (see image above).
4. Close the locking tab to secure the filters
in place.

Writer: mg

IS-20925
Page 5 / 7

STANDARD AIR FILTER INSTALLATION (ALL KITS)

1. Remove (drill out) all small rivets present
around the filter metal frame (metal frame
will be reused).

2. Unbent the metal frame locking tab
located at one of the frame corners and
open the metal frame to free the filter
element.

3. Remove the filter from the frame.

Writer: mg

IS-20925
Page 6 / 7

4. Push flat all metal tabs inside the frame
rail.

5. Insert the MERV filter in the frame rail.
Take note of the airflow direction of the
filter.
NOTE: Arrow and/or mesh side of the filter must
be pointing/facing the outside of the vehicle.

6. Reassemble the metal frame (insert and
bent back the locking tab).
7. Reinstall the filter(s) making sure that the
screen mesh is facing the outside of the
vehicle.

Writer: mg

IS-20925
Page 7 / 7

PARTS / WASTE DISPOSAL
Discard according to applicable environmental regulations (Municipal/State[Prov.]/ Federal)
Place old filters in plastic bags & follow current health agencies recommendation
regarding potentially contaminated waste disposal.

Writer: mg